30150450 has 72 divisors (see below), whose sum is σ = 88382736. Its totient is φ = 7308000.

The previous prime is 30150443. The next prime is 30150451. The reversal of 30150450 is 5405103.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30150451) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1905 + ... + 7995.

It is an arithmetic number, because the mean of its divisors is an integer number (1227538).

Almost surely, 2^30150450 is an apocalyptic number.

30150450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30150450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44191368).

30150450 is an abundant number, since it is smaller than the sum of its proper divisors (58232286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30150450 is a wasteful number, since it uses less digits than its factorization.

30150450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6120 (or 6112 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 30150450 is about 5490.9425420414. The cubic root of 30150450 is about 311.2418104005.

Adding to 30150450 its reverse (5405103), we get a palindrome (35555553).

The spelling of 30150450 in words is "thirty million, one hundred fifty thousand, four hundred fifty".